William c



(No Model.)

W. G. BAKER.

GAR HEATING APPARATUS.

No. 590,470. Patented Sept. 21,1897.

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UNITED STATES PATENT OFFICE.

lVILLIAM O. BAKER, OF NElV YORK, N. Y.

CAR-HEATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 590,470, datedSeptember 21, 1897. Application filed April 11, 1887- Serial No.234,324. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM C. BAKER, of the city and State of New York,have invented an Improvement in Oar-Heating Apparatus, of which thefollowing is a specification.

Difficulty has been experienced in making use of steam for heating cars,because the locomotive-boiler usually has not sufficient capacity toheat the train and also supply steam to the engine.

The object of my invention is to heat the cars by heat from thelocomotive when coupled to the train or to employ heat from a stationaryboiler when the locomotive is de tached, and in carrying out myinvention I make use of the combinations of devices hereinafter setforth.

In the drawings, Figure 1 is a cross-section ofa car and track andsection of the hot-water-supply apparatus. Fig. 2 is a sectional plan ofthe car. Fig. 3 is a longitudinal section of the thermostatic regulatingdevice, and Fig. 4: illustrates the jointed couplingpipe.

The car is represented at A, and within it are heating-pipesB, ledaround the sides of the car or in loops below the seats, or in any usualmanner, such heating-pipes usually being terrnec radiators, and it ispreferable to employ a rising pipe 30 and expansion vessel 31 for thewater that is within the coil of pipes to pass up into and also toreceive any air or gases, so that the continuity of the circulation maynot be interfered with.

Beneath the car is a water-holding tank D", and the radiator-pipes B donot open into the same, but there is within the tank D a coil of pipe 0,with which the pipes B are directly connected, so that when the heat isapplied to the coil the water therein and within the pipes B is causedto circulate around so as to heat the car throughout.

The positions of the pipes B within the car and the shape and characterof the coil 0 will vary according to the character of the car and to theheating capacity required.

The tank I) is to be filled with water, and it is to be heated to a hightemperature, preferably by connection at stations. \Vith this object inview I provide a suitable boiler F,

preferably at a depth below the track, with pipes g and h, leading up tothe track, with couplings l5 and 16, to connect with the couplings andcooks 2 and 3 upon the tank D, and these couplings are preferablyjointed, so as to be swung into the desired positions to coincide withthe cooks 2 and 3 upon the carat whatever point the carmay be stopped.Two or more universal or swinging joints (shown in Fig. 4) areconvenient for coupling each pipe g or it to the tank on the car. Whenthe cocks and 13 14 are opened after the pipes have been coupled, thehighly-heated water in the boiler F will circulate up into the tank Dand the coolerzwater in the latter will pass down by h to the bottom ofboiler F, and by this means water of several hun dred degrees of heatcan be introduced into the tank D without developing steam.

I remark that the tank D and the pipes are to be surrounded on theirexposed surfaces with fireproof and non-conducting material to retainthe heat.

A suitable furnace is used with the boiler F, and it is preferable toplace a supply and expansion vessel L within the flue Q Q, so that thewater therein will become heated and pass by the pipes m 92 into theboiler F. Water is forced into the vessel L by the pipe P. At gage-cocksare shown, and'at 2i and K are safety-valves.

The highly-heated water in the tank D heats the water in the coil 0, andsuch water circulates through the pipes or radiators Bin the car, andthe speed of circulation can be regulated by a cook or by an automaticthermostatic regulator, such as shown in Fig. 3, in which the tube has avalve 36 on the end adjacent to a seat atthe end of the adjustable pipe37, and the tube 35 is to be of copper or brass or other metal to expandmore than the iron case of the regulator, and hence the flow of waterthrough this regulator will be in proportion to the temperature, and theexpansion heat-regulator can be adjusted to any desired point by movingthe seat toward or from the valve or the valve toward or from the seat.

I provide a fire-box E beneath the tank D, and a flue at E, so that thecar can be heated by a fire built in said fire-box when the engineheating apparatus to any circumstances or is disconnected or in case ofthe train being delayed or blockaded in snow or before the engine isconnected to the train.

The cocks at 4 5 allow for hot water being passed into the tank I) fromthe other end to the cocks 2 3. The cock 11 allows water to be drawn outfrom the coil 0 and pipes B when desired.

I also provide a steam-pipe at 8 that is to extend thelength of the car,and at the ends are cocks and flexible or swinging couplings, as usualin steam heating apparatus for cars, and within the tank D there is asecond coil of pipe 9, one end of which is connected with the pipe 8 andthe other end is provided with a cock or air-valve at 10. A

When it is necessary to make use of steam from the locomotive, it isadmitted into the pipe 8 and coil 9 and heats the water in the tank D,and this heats the coil Oand the water circulates through the pipes B inthecar, as in the ordinary Baker car-heater.

These different arrangements adapt the contingencies under which it maybe placed, and I remark that it is preferable to use water saturatedwith salt to prevent injury by frost.

In my present improvements I am able to make use of heat from thelocomotive when coupled to the train and to employ heat from astationary boiler when the locomotive is de tached, thereby warming upthe cars by one of two external sources of heat, and I arrange a fireheating apparatus that can be brought into action at the same time asthe steam from the locomotive or at the same time that heat is suppliedfrom a stationary boiler through the flexible connections. It will alsobe apparent that this device is available with a vehicle having acompartment, as distinguished from an open vehicle or platform-car, andthat the liquid in the tank D becomes a heatabsorber which is inoperative contact with the water or fluid circulating through the systemof pipes within the compartment of the car, and while it is to beunderstood that 1 the locomotive is usually the source of steam 1 heatin the moving train the heat may be supplied from any other vehiclecontaining the proper heating apparatus.

I claim as my invention-- a 1. The combination of a tank below the carwith the heating pipes or radiators in the car and a coil within thetank connected to and forming a continuation of the radiator-pipes inthe car, pipes and cooks and a stationary boiler for supplying heat intothe tank and a fire-box connected with the tank for heating the watertherein by fire heat Whenevernecessary, substantially as set forth.

2. The combination in a car-heater of a tankbelow the car, pipes orradiators within the car, a coil within the tank connected with andforming a continuation of the radiators in the car, pipes and cooks anda stationary boiler for supplying heat into the tank when the train isat rest, and asecond coil within the tank and a supply-pipe by which afluid from another vehicle can be admitted whenever necessary,substantially as set forth.

3. The combination with a car and thesystem of heating-pipes within thecar containing liquid that is circulated by heat,of a vessel surroundinga portion of the pipe of the circulating system and containing aliquich'a steam-pipe and connections for steam from the locomotive forheating the liquid in the said vessel, substantially as set forth.

4. The combination of a vehicle having :a compartment, a system of pipescontaining a liquid that is circulated by heat with'i-nsai'dcompartment, a tank containing a heat-absorber which is in operativecontact with the said circulating system, a heater for the air sorberand connections through which heat for the heater may be supplied fromanother vehicle, and pipes for connecting the tank with a stationaryheating apparatussubstantially as set forth.

Signed by me this 5th dayof April, 1887.

\V. C. BAKER.

Witnesses:

GEo. T. PINCKNEY, W. L. SERRELL.

